Shoe sole



FIG. 1 is a bottom front perspective view of shoe sole according to my new design;

FIG. 2 is a bottom rear perspective view of the design shown in FIG. 1; and,

FIG. 3 is a bottom plan view of the design shown in FIG. 1.

The broken lines showing the shoe upper, the remainder of the shoe sole and the indicia represent the portions of the design that form no part of the claim. 

The ornamental design for a portion of a shoe sole, as shown and described. 